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Priority-rating of Public Building Maintenance Work By Mohammad AL-Majed Abdul-Mohsen AL-Hammad Saleh Daffuaa King Fahd

Priority-rating of Public Building Maintenance Work By Mohammad AL-Majed Abdul-Mohsen AL-Hammad Saleh Daffuaa King Fahd University of Petroleum and Minerals. CONTENTS. Introduction Objectives of the Study Review of Literature Methodology Results and Discussion Summary and Conclusions.

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Priority-rating of Public Building Maintenance Work By Mohammad AL-Majed Abdul-Mohsen AL-Hammad Saleh Daffuaa King Fahd

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  1. Priority-rating of Public Building Maintenance WorkByMohammad AL-MajedAbdul-Mohsen AL-HammadSaleh DaffuaaKing Fahd University of Petroleum and Minerals

  2. CONTENTS • Introduction • Objectives of the Study • Review of Literature • Methodology • Results and Discussion • Summary and Conclusions

  3. Introduction • In the absence of an established systematic approach, setting priorities for public maintenance projects occurs in a random way depending mainly on past experience • In-house maintenance • Contracting • Combination of both

  4. Introduction (Cont.) • Limited financial resources • Long queue of projects waiting to be maintained • Lack of data among maintenance authorities • No systematic approach for setting priorities

  5. Objectives • To identify criteria affecting Priority-rating • To utilize a methodology for obtaining a priority index of maintenance projects • To conduct a case study application

  6. Review of Literature • Highway maintenanceactivities - by optimization programming models - by neural network models • Building maintenance (limited literature) - A scarcity of data on the subject • General information - experience and judgment of engineers - written documents - priority indices

  7. Methodology • The first objective of identifying Priority-rating criteria is achieved by : • - literature review • - field interviews • - questionnaire • The second objective of developing a methodology is achieved by : • - reviewing several methods on the subject

  8. Methodology (Cont.) • The third objective of conducting a case study is achieved by : - selecting six sampling projects. - forming a committee of six members - questionnaire

  9. Results and Discussion • Criteria affecting Priority-rating of public building maintenance work (23 criteria) - Building Performance Criteria (Group 1) - Managerial Criteria (Group 2) • Method of Priority-rating - Analytic Hierarchy Process AHP • A case study consisting of six projects

  10. Results and Discussion (Cont.)Building Performance Criteria (12 criteria) • Boundary framework • Status of landscaping and outdoor areas • Interior finish & facades • Building enclosure systems • Horizontal circulation • Vertical circulation • Sanitation & hygiene level • Thermal comfort • Acoustic comfort • Visual comfort • Indoor air quality • Life safety concerns

  11. Results and Discussion (Cont.)managerial Criteria (11 criteria) • Functioning of the building • Aesthetics • Location • Management desires • Frequency of complaints • Availability of in-house maintenance • Initial cost • Effect of delaying maintenance work • Use of the building • Life expectancy • Health & safety risk

  12. Results and Discussion (Cont.) Analytic Hierarchy ProcessAHP “was introduced by Thomas Saaty in the early 1970s. The process addresses how to determine the relative importance of a set of activities in a multi-criteria setting through the use of linear composite indices”.

  13. Results and Discussion (Cont.)AHP MethodRj = sum Ci * Pij Rj : The overall importance of project j Ci : The relative importance of criteria i Pij : The relative importance of project j with respect to criteria i

  14. Results and Discussion (Cont.) • Relative importance of criteria groups 1 & 2 (Ci) • Paired Comparsions matrix (Figure 1) • Criteria relative importance (Ci) (g.1)-(Table 3)

  15. Case Study • Sampling projects (Table 2) • Scale of relative importance (Table 5) • Evaluation of projects Vs building performance criteria (Table 6) • Relative importance of projects Vs building performance criteria (Table 8) • Priority index of the projects (Table 10)

  16. Conclusions • 23 criteria were identified and subjectively classified into BPG and MG • Relative importance of BPG = 0.74 & MG = 0.26 • The criteria of life safety concern, status of building enclosure systems, and Sanitation & hygiene level were the most important among BPG • The criteria of health & safety and Functioning of the building were the most important among MG

  17. Conclusions (Cont.) • The study presented a methods of the Analytic Hierarchy Process AHP • A case study consisting of six projects was conducted and indicated the following results : • AHP Rank : P4, P5, P2, P1, P3, P6

  18. Thank you

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